he was with his son in texas as he underwent surgery. he spoke of it for the first time today. >> i just want y'all to know since you asked about my son. it's not only good to be here, but things are good in delaware. my son beau is fine, sends his love. he wanted me to say hello to all of you and he wanted to be with his colleague kathleen, the attorney general of the state of pennsylvania. he's doing well. he's getting back to work. >> the president's bus tour is somewhat reminiscent of the campaign trail and cnns senior white house correspondent is here with the details. jim, you have followed him for a long time today. it's been a long one. >> reporter: it has. something you know very well. as the president was gearing up for the final day of the bus tour, a white house spokesman was talking about the chemical spill in syria. the president had a tricky balancing act on his hands all week. there's no election in sight, but president obama was in full campaign mode traveling in the white house bus from new york to pennsylvania, kicking